About the author Louis A. Bloomfield is Professor of Physics at the University of Virginia. He also works extensively with professional societies and the media to explain physics to the general public. He maintains a website where he answers a wide range of questions on physics. Bloomfield received his Ph.D. from Stanford and was a postdoctoral fellow at AT&T Bell Laboratories. Bloomfield has been widely recognized for his teaching of physics and science to thousands of non-science students at the University of Virginia and is the recipient of a 1998 State of Virginia Outstanding Faculty Award and the 2001 Pegram Medal of the Southeastern Section of the American Physical Society. He is the author of almost 100 publications in the fields of atomic clusters, autoionizing states, high-resolution laser spectroscopy, nonlinear optics, computer science, and general science literacy, and of the successful introductory textbook How Things Work: The Physics of Everyday Life, 3rd Edition (Wiley 2006).